Subduction initiation and ophiolite crust: new insights from IODP drilling

Autor: D. E. Heaton, T. Sakuyama, Wendy R. Nelson, Scott A. Whattam, Katerina Petronotis, Marguerite Godard, Timothy Chapman, Sally Morgan, Renat R. Almeev, Claire Carvallo, Walter Kurz, Eric C. Ferré, Aaron Avery, Jeffrey G. Ryan, Kenji Shimizu, Marie Python, Yibing Li, William W. Sager, Mark K. Reagan, Julian A. Pearce, Maria Kirchenbaur, Gail L. Christeson, Steffen Kutterolf, Katsuyoshi Michibayashi, Alastair H. F. Robertson, Hongyan Li, John W. Shervais, Julie Prytulak
Přispěvatelé: University of Iowa [Iowa City], Cardiff University, Texas A&M University [College Station], Institut für Mineralogie [Hannover], Leibniz Universität Hannover [Hannover] (LUH), Florida State University [Tallahassee] (FSU), Institut de minéralogie, de physique des matériaux et de cosmochimie (IMPMC), Muséum national d'Histoire naturelle (MNHN)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de recherche pour le développement [IRD] : UR206-Centre National de la Recherche Scientifique (CNRS), University of Sydney, University of Texas, Southern Illinois University [Carbondale] (SIU), Géosciences Montpellier, Institut national des sciences de l'Univers (INSU - CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA), Oregon State University (OSU), Universitat Koln, University of Edinburgh, Guangzhou Institute of Geochemistry, Institute of geology, Beijing, Shizuoka University, Department of Geology [Leicester], University of Leicester, Department of Physics, Astronomy, and Geosciences [Towson], Towson University [Towson, MD, United States], University of Maryland System-University of Maryland System, Department of Earth Science and Engineering [Imperial College London], Imperial College London, Hokkaido University [Sapporo, Japan], University of South Florida [Tampa] (USF), University of Houston, Osaka University [Osaka], Utah State University (USU), JAMSTEC, Korea University, Seoul, University of Iowa [Iowa], A&M University, College Station, Institut fur Mineralogy, Hannovre, Florida State University, Institut de minéralogie, de physique des matériaux et de cosmochimie ( IMPMC ), Institut de recherche pour le développement [IRD] : UR206-Centre National de la Recherche Scientifique ( CNRS ) -Muséum National d'Histoire Naturelle ( MNHN ) -Université Pierre et Marie Curie - Paris 6 ( UPMC ), Southern Illinois University, Université des Antilles et de la Guyane ( UAG ) -Institut national des sciences de l'Univers ( INSU - CNRS ) -Université de Montpellier ( UM ) -Centre National de la Recherche Scientifique ( CNRS ), Oregon State University, Towson University, Department of Earth Science and Engineering [London], Hokkaido University, University of south Florida, Utah State University, Leibniz Universität Hannover=Leibniz University Hannover, Korea University [Seoul], Natural Environment Research Council (NERC), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Montpellier (UM)-Université des Antilles (UA)-Centre National de la Recherche Scientifique (CNRS)
Rok vydání: 2017
Předmět:
Geochemistry & Geophysics
basalt
International Ocean Discovery Program
010504 meteorology & atmospheric sciences
VOLCANIC-ROCKS
TRENCH
Geochemistry
Izu-Bonin
010502 geochemistry & geophysics
01 natural sciences
drilling
subduction initiation
boninite
geography.geographical_feature_category
Subduction
ORIGIN
IZU-BONIN-MARIANA
Philippine plate
[ SDU.STU.TE ] Sciences of the Universe [physics]/Earth Sciences/Tectonics
Geology
MORB
[ SDE.MCG ] Environmental Sciences/Global Changes
FORE-ARC
Physical Sciences
bonin
Izu
[SDE.MCG]Environmental Sciences/Global Changes
0404 Geophysics
Ophiolite
Mantle (geology)
0402 Geochemistry
14. Life underwater
ISLAND-ARC
Site U1442
Site U1440
Site U1441
0105 earth and related environmental sciences
[SDU.STU.TE]Sciences of the Universe [physics]/Earth Sciences/Tectonics
Basalt
geography
Science & Technology
COMPLEX
Crust
Expedition 352
EAST PACIFIC RISE
EVOLUTION
Volcanic rock
0403 Geology
Site U1439
ophiolite
Island arc
Zdroj: International Geology Review
International Geology Review, Taylor & Francis, 2017, 59 (11), pp.1439-1450. ⟨10.1080/00206814.2016.1276482⟩
International Geology Review, Taylor & Francis, 2017, 59 (11), pp.1439-1450. 〈10.1080/00206814.2016.1276482〉
International Geology Review, 2017, 59 (11), pp.1439-1450. ⟨10.1080/00206814.2016.1276482⟩
Reagan, M K, Pearce, J A, Petronotis, K, Almeev, R R, Avery, A J, Carvallo, C, Chapman, T, Christeson, G L, Ferré, E C, Godard, M, Heaton, D E, Kirchenbaur, M, Kurz, W, Kutterolf, S, Li, H, Li, Y, Michibayashi, K, Morgan, S, Nelson, W R, Prytulak, J, Python, M, Robertson, A H F, Ryan, J G, Sager, W W, Sakuyama, T, Shervais, J W, Shimizu, K & Whattam, S A 2017, ' Subduction initiation and ophiolite crust: new insights from IODP drilling ', International Geology Review, pp. 1-12 . https://doi.org/10.1080/00206814.2016.1276482
ISSN: 1938-2839
0020-6814
Popis: International audience; nternational Ocean Discovery Program (IODP) Expedition 352 recovered a high-fidelity record of volcanism related to subduction initiation in the Bonin fore-arc. Two sites (U1440 and U1441) located in deep water nearer to the trench recovered basalts and related rocks; two sites (U1439 and U1442) located in shallower water further from the trench recovered boninites and related rocks. Drilling in both areas ended in dolerites inferred to be sheeted intrusive rocks. The basalts apparently erupted immediately after subduction initiation and have compositions similar to those of the most depleted basalts generated by rapid sea-floor spreading at mid-ocean ridges, with little or no slab input. Subsequent melting to generate boninites involved more depleted mantle and hotter and deeper subducted components as subduction progressed and volcanism migrated away from the trench. This volcanic sequence is akin to that recorded by many ophiolites, supporting a direct link between subduction initiation, fore-arc spreading, and ophiolite genesis.
Databáze: OpenAIRE
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